What statement best describes an independent variable?
A. The factor that's changed by the experimenter and impacts the constant in an experiment
B. The factor that's changed by the

experimenter and impacts the dependent variable
C. The factor that's not changed by the experimenter and is impacted by the dependent variable
D. The factor that does not change, but impacts the constant in an experiment

This statement best describes an independent variable. B. The factor that's changed by the experimenter and impacts the dependent variable